Question
The commonest site of pressure sore is:
| A. | Heel |
| B. |
Sacrum |
| C. |
Ischium |
| D. |
Occiput |
Show Answer
|
Correct Answer » B Explanation |
 |
A pressure sore (decubitus ulcer/bed sore) is a localized area of tissue necrosis caused by prolonged pressure over a bony prominence, resulting in ischemia and tissue damage.
The sacrum is the most common site of pressure sores overall, particularly in bedridden patients lying in the supine position.
Common Sites of Pressure Sores
- Sacrum – most common overall
- Heel
- Ischial tuberosity
- Greater trochanter
- Occiput
- Lateral malleolus
Important Exam Point
The answer may vary depending on the patient population:
- General bedridden patients: Sacrum is the commonest site.
- Paraplegic or wheelchair-bound patients: Ischial tuberosity (Ischium) is the commonest site because most body weight is transmitted through the ischial tuberosities while sitting.
Why Sacrum is Most Common Overall
- Maximum pressure is exerted over the sacral area in supine patients.
- Thin soft tissue cover over a bony prominence.
- Frequent exposure to moisture from urinary or fecal incontinence, increasing skin breakdown.
